1mime.types(5)                     Apple Inc.                     mime.types(5)
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NAME

6       mime.types - mime type description file for cups
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DESCRIPTION

9       The mime.types file defines the recognized file types.
10
11       Additional  file types are specified in files with the extension .types
12       in the CUPS configuration directory.
13
14       Each line in the mime.types file is a comment,  blank,  or  rule  line.
15       Comment  lines  start  with the # character.  Rule lines start with the
16       MIME media type and are optionally followed by a series of file  recog‐
17       nition rules:
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19           mime/type [ rule ... rule ]
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21       Rules can be extended over multiple lines using the backslash character
22       (\):
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24           mime/type [ really-really-really-long-rule ... \
25             rule ]
26
27       MIME media types specified by the mime/type field are  case-insensitive
28       and  are  sorted  in  ascending  alphanumeric order for the purposes of
29       matching.  See the "TYPE MATCHING AND PRIORITY" section for more infor‐
30       mation.
31
32       The rules may be grouped using parenthesis, joined using "+" for a log‐
33       ical AND, joined using "," or whitespace for a logical OR, and  negated
34       using "!".
35
36   RULES
37       Rules  take  two  forms  - a filename extension by itself and functions
38       with test values  inside  parenthesis.   The  following  functions  are
39       available:
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41       match("pattern")
42            True if the filename matches the given shell wildcard pattern.
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44       ascii(offset,length)
45            True  if  the  length bytes starting at offset are valid printable
46            ASCII (CR, NL, TAB, BS, 32-126).
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48       printable(offset,length)
49            True if the length bytes starting at offset  are  printable  8-bit
50            chars (CR, NL, TAB, BS, 32-126, 128-254).
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52       priority(number)
53            Specifies  the  relative  priority  of  this MIME media type.  The
54            default priority is 100.  Larger values have higher priority while
55            smaller values have lower priority.
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57       string(offset,"string")
58            True if the bytes starting at offset are identical to string.
59
60       istring(offset,"string")
61            True  if the bytes starting at offset match string without respect
62            to case.
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64       char(offset,value)
65            True if the byte at offset is identical to value.
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67       short(offset,value)
68            True if the 16-bit big-endian integer at offset  is  identical  to
69            value.
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71       int(offset,value)
72            True  if  the  32-bit big-endian integer at offset is identical to
73            value.
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75       locale("string")
76            True if current locale matches string.
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78       contains(offset,range,"string")
79            True if the bytes starting at  offset  for  range  bytes  contains
80            string.
81
82   STRING CONSTANTS
83       String  constants  can be specified inside quotes ("") for strings con‐
84       taining whitespace and angle brackets (<>) for hexadecimal strings.
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86   TYPE MATCHING AND PRIORITY
87       When CUPS needs to determine the MIME media type of a  given  file,  it
88       checks  every MIME media type defined in the .types files.  When two or
89       more types match a given file, the type chosen will depend on the  type
90       name  and  priority,  with higher-priority types being used over lower-
91       priority ones.  If the types have the same priority, the type names are
92       sorted  alphanumerically  in ascending order and the first type is cho‐
93       sen.
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95       For example, if two types "text/bar"  and  "text/foo"  are  defined  as
96       matching the extension "doc", normally the type "text/bar" will be cho‐
97       sen since its name is alphanumerically smaller than  "text/foo".   How‐
98       ever,  if  "text/foo"  also  defines a higher priority than "text/bar",
99       "text/foo" will be chosen instead.
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FILES

102       /etc/cups - Typical CUPS configuration directory.
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EXAMPLES

105       Define two MIME media types for raster data, with one  being  a  subset
106       with higher priority:
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108           application/vnd.cups-raster  string(0,"RaSt") string(0,"tSaR") \
109                                         string(0,"RaS2") string(0,"2SaR") \
110                                         string(0,"RaS3") string(0,"3SaR")
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112           image/pwg-raster              string(0,"RaS2") + \
113                                         string(4,PwgRaster<00>) priority(150)
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SEE ALSO

116       cups-files.conf(5),     cupsd.conf(5),     cupsd(8),     cupsfilter(8),
117       mime.convs(5), CUPS Online Help (http://localhost:631/help)
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120       Copyright © 2007-2019 by Apple Inc.
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12426 April 2019                        CUPS                        mime.types(5)
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